Final Answer:
An object moves from position +15m to +75m in 10 seconds.The displacement of the object is +75m.
Therefore, Option 3: +75m is correct.
Step-by-step explanation:
The displacement of the object is +75m.
Displacement is the change in position, calculated by subtracting the initial position from the final position. In this case, +75m (final position) minus +15m (initial position) results in a displacement of +60m. The positive sign indicates the direction of the displacement, which is towards the positive direction of the coordinate system.
Interpreting the displacement as +75m means the object moved 60 meters in the positive direction from its initial position.
Therefore, Option 3: +75m is correct.